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  1. Sweet Peach EL34b Amp - Distortion?
  2. 6C33C socket types, where to buy?
  3. haedphone amp. using 6418< NEED HELP
  4. finished my 6au6/807 amplifier
  5. Thinking about building an S5 16LS 16W amp I've got some questions for the forum./
  6. Broskie "Unbalancer" - transformer specifications
  7. Tube chess.
  8. How Its Made - Vacuum Tubes
  9. Please help me understand power supply load
  10. 12AU7 - How absolute are maximum ratings?
  11. Tube rejuvination
  12. Article: Samsung brings back tubes in audio dock
  13. 1st build suggestions
  14. Parallel SE output
  15. Fixed Bias question
  16. vintage ua 610 schematic
  17. Which KT88 PP and which Transformers?
  18. Some more special small-signal tv tubes
  19. MR 67 Coupling Caps
  20. Help - YAQIN MS-20L schematic
  21. Power and Speaker cables
  22. v1 tube keeps going microphonic help! 5e3 build
  23. Leak TL12+ with triode mode EF86
  24. diy tube dampers
  25. VTVM troubleshooting help
  26. PP amp crossover distortion
  27. Sanity check please? ST-70(-ish) power supply
  28. Thoughts of apparent noise on ground - due to power tx?
  29. hybride circlotron
  30. Clone
  31. 8156 Beam Pentode Compactron
  32. DOUBLE TRIODE (6N16B)
  33. looking for Tube I/V analog for dac schematic ?
  34. NewBee PPEL84
  35. Whooaa! Now we're talking.
  36. Cinema Engineering AT-18
  37. Back from school
  38. Amp ideas for my spare 3.3k output transformers.
  39. HEllo and a few suggestions please
  40. 1SH24B Pre-Amp (or buffer?)
  41. Anode cap for GU 29 / QQE06/40
  42. Back to back autotransformers for B+?
  43. Sound Valves M60 schematics
  44. Volume Pot for RH84
  45. Mengyue mini el34b
  46. Which Chinese integrated tube amp have the power for Rock Song ?
  47. Help on transformers please
  48. 300B alternatives
  49. Anybody using a tube amp in their car?
  50. What is a KT88-98?
  51. 6au6 line stage a bad idea?
  52. Making a Kron tube
  53. AY Symphonies preamp
  54. Need to Upgrade Tube Preamp Volume Pot
  55. Tubelab Simple SE low B+
  56. Filament AC or DC?
  57. rasping sound from Dared VP-16
  58. Anyone have any "small signal" pentode models?
  59. Power amp distortion for modern amps
  60. Help with EL504-based amplifier
  61. Tubes: Are they worth it?
  62. Radio Shack Boston Monobloc (fuse question)
  63. 829B 3E29 Pentode PPP?
  64. Fixed Autobias?
  65. Best wishes
  66. Radiotron A504 amplifier schematic
  67. Blown power tube - a short story
  68. Hickok 752A calibration?
  69. replace EL34 with EL37 !?
  70. Mono push-pull driver PCB
  71. Magnavox 139AA schematics, info?
  72. Anyone knows what driver tube on DowdyLama's GM-70......
  73. Building an amp around the QB5/1750 transmitter tube
  74. Instrument amp from '59 Lowrey donor chassis.
  75. cascoded gyrator loaded 6H9C to low idle.
  76. vacuum tube DAC and connection
  77. Dynaco ST70 II Right Channel Out
  78. ST70 Inrush Issue
  79. ECC88 OTL heaphone amp
  80. Help with deciding to build or buy Tube amp.
  81. Luxman LV-105 static on on channel
  82. equivlent of FU-50
  83. placing the volume control
  84. PP 300B ''transformer coupled''
  85. My First Tube Preamp
  86. Tube amp kit and speaker recommendations?
  87. First design GU81M SE triode
  88. Instruments & Amps forum - where is it?
  89. Power supply capacitor question for tubelab simple ss
  90. EL300 = 6FN5 / PL300 = 35FN5 tube
  91. 6U8 driving 45
  92. very low impedance white follower with 6H13C
  93. EL86 Any idea helps.
  94. 6112 and 6111 Mini-preamp
  95. Expert advice on what preamp to chose
  96. Harman Kardon DPR-7, Commander series pre/mixer
  97. input transformer - mumetal casing etc.
  98. Oil-filled caps: ASC versus Panasonic
  99. SOHA headphone amp
  100. Using a single triode as a .......
  101. Sonic Frontiers SFP-1 Phono Stage
  102. Help!! with attenuation.
  103. power up inrush current limiter - anyone using?
  104. Audioromy FU-29, Latest Model 828A Mini Review
  105. Vertical-deflection
  106. Drilling a hole
  107. Edcor CXPP25-MS-8K V Triode Z-565
  108. bad opt measured values
  109. Mu Follower Driver for Push-Pull
  110. Hickok 539 question...
  111. need datasheets for a phillips transformer if anyone has any
  112. Chicago power XFMR question.
  113. Coupling Capacitor - Pls Help
  114. Help please on Christmas gift
  115. Audio Note P-zero
  116. SE EL34 Schematic - What do you think?
  117. Playing with hybrid amp: SRPP + MOSFET
  118. 300B filament supply question
  119. KT88 Parallel Push Pull
  120. cheating life out of old tubes?
  121. dBu transformer ratings
  122. Dared MP-2a3c mods
  123. Output transformers (Wolpert)
  124. Using Mains Transformers as Outputs
  125. Tube just for show...
  126. first project - first post - poddwatt
  127. High power CCS
  128. Analog Summing
  129. My new el34 + 12ax7 VCT amp. (Need Ideas For my first headphone vacuum tube amp Too~)
  130. cascode tubes
  131. High Fidelity by Pilot (circa 1953)
  132. Hardware help please
  133. integrated amps 100 per channel
  134. KT88 mounting question
  135. Output Transformer question
  136. Angstrom Thermionic
  137. ECC88 tube buffer NEEDED !
  138. Marshall 8080, missing components
  139. Paralell SE 807 Amp design
  140. Putting together a tweaker friendly amplifier!
  141. Tube chassis
  142. DHT headphone Hybrid-CF+
  143. Looking for specs on this Beyer Xfmr
  144. Resistors for Berning EA-2101?
  145. Uneven Plate Glow
  146. Parafeed transformer sounds thin
  147. Lightbulbs as ccs
  148. My AWESOME First DIY amp
  149. Cary audio design SLI 80
  150. A1538 OPT?
  151. Genalex A2900 Keep or Sell?
  152. 6CB6 Spice Model wanted
  153. XFMR Help?
  154. 12 volt to 300 volt inverter question for tubes
  155. These amps should be verboten!
  156. how to use PCL86 instead of ecl86
  157. PSU for Aikido (4x 12SN7)
  158. SCA35 and AU-70
  159. Analisys of power amp limitations of tube bias range
  160. DIY Phono Preamp ??
  161. NOS 211 RCA or National Union?
  162. Iron Powder + Resin Output Transformer
  163. The Radio Hat Challenge
  164. EU regulations
  165. Transconductance for kt-90 in plain english
  166. Craftsmen RC-2
  167. Valve Amplification Company V100
  168. Parallel feed transformer with SRPP
  169. It's heeeeeere!- Valve Amplifiers 4th Edition
  170. opera consonance phonostage-PM1
  171. Anybody Explain this Preamp shematic?
  172. The high-voltage collection
  173. Input transformer topology question
  174. JE Labs 300Bdx stereo - troubleshooting
  175. battery operated 12/24/48 Volt multiple tube OTL
  176. Bringing up long-stored tube gear
  177. About RH84 three channel?
  178. MCC with Fisher
  179. Directly heated cathodes
  180. Build recommendation
  181. Ortofon KS 591 - informations
  182. Oatley K295-extra space for tubes
  183. A beginner's tube amp to drive a pair of fostex Fe103e
  184. Tame the beast.
  185. KT88 and Hammond Transformer
  186. B+ Drifts down after 2 hours
  187. Power amp sputters on turnoff
  188. Yet another EQP-1A
  189. How to bias 6SL7?
  190. 6CG7/6FQ7 = 6N5P (6Н5П)
  191. #27 mu stage
  192. Compactron Regulated Power Supply
  193. Best sounding voltage amplifier for hybride.
  194. PX25 to 300B pins
  195. de-gassing power tubes???
  196. Heathkit 51-29 output transformers issure
  197. 6AS7 Model
  198. 26H choke good enough for a grid or anode choke?
  199. Russian 6R2P for small amp.
  200. Power transformer primary is open.
  201. Rectifier oddness
  202. First Tube Build, Thoughts?
  203. Output Transformers
  204. Lazy Sunday 6SN7 Preamp
  205. Audio research VT200 Biasing & Schematic
  206. finished my new preamplifier!!
  207. What would be the correct output cap for this OTL Headphone Amp?
  208. Full Bridge Rectifier With Tubes
  209. Looking for data sheet for GE JAN 6146W/7212
  210. Best Valve pre-amp match for ME 550 amp
  211. Fisher 500c
  212. From old Philips tube books , just for tube audio DIY friends !
  213. UFO
  214. Adding a preamp?
  215. XS-225 valve amp circuit.
  216. LS7/CV1660 curves
  217. Differences between 12V6 tube and 12A6 tube?
  218. Please check my schematic
  219. 12W Push pull w/6C4C
  220. Tube Date Code
  221. For new members....
  222. Graphite ring on sweep tubes
  223. 6N6P tube - focus on
  224. Vox Guitar Amp Created a Revolution
  225. Hot tube preamp pedal build
  226. Counterpoint Electronics/Counterpoint Acoustics/Counterpoint Audio
  227. Radford STA100 improvements?
  228. Playmaster unit 2 help needed!
  229. help me build an output transformer
  230. Vintage Magnavox tube amp
  231. Christmas Build, advice needed.
  232. Speaker suggestions for ST-70
  233. Tube markings?
  234. gaumont-kalee
  235. amplifiers audio research D90
  236. 40W Glass A 300B tube schematic needed.
  237. Hum in one channel only
  238. Water cooling Power Tubes
  239. Toroid Output Transformer from Plitron
  240. Scott LK-30 Assembly Manual Needed
  241. HUM STARTS 1 OR 2 HOUR AFTER THE AMP IS ON
  242. The best valve amp!
  243. Equivalents for 12AT7 and 6N11 ? (Sense G3 headphone amp)
  244. More probably stupid questions about feedback
  245. single stage amp?
  246. SS 83 again
  247. Making Spice Models for tubes
  248. Seth mk 2 ???
  249. Colorful inspiration
  250. Testing KT-90's Ei NIs Yugoslavia

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